Refrigerator.



W. MANTEUPFEL. RBF'RIGBRATOR APPLICATION FILED JUNE 20,1010.

Patented Aug. 13, 1912.

,l .To all whom, t may concern:

UNTTED sTATEs PATENT OFFICE.

'WILLIAM MANTEUFFEL, OF ST. PvAUL, MINNESOTA.

REFEIGERATOB.

Specification of Letters Patent.

Patented Aug. 13, 1912.

Application led June'20, 1910. Serial No. 567,823'.

Be it., known thatI I, WILLIAM MANTEUF- FEL, a citizen of the United States, residing at St. Paul, in the county of Ramsey and State of Minnesota, have invented a new and useful Improvement in Refrigerators, of which the following. isy a specifica-` My invention relates to improvements in household refrigerators andl my principal object is to'secure a more uniform tempe-rature throughout the provision chamber by means of a regulated circulation of cooled gir through the ice` and provision chamers.

In the drawin s with which I illustrate my invention an which form part of my specification, Figure 1 is a sectional view of my refrigerator showing the relative posit-ion `of the chambers within it and the passageways connecting them; Fig. 2 is a part-ialsection on the lineA-A, of Fig. 1, showing the details of the partition wall; and Fig. B'is'an enlarged detail ofthe drainage 'trap `partly in section. v

In the above drawings, 2 is an ordinary refrigerator box and fitted with my improvements, having double walls 3 and 4 inclosing air spaces 5. The interior of the refrigerator is divided into two compartments' by a partition 6 having a passageway 7 below it and a passageway 8 above it, smaller than the passa eway 7, and connecting the provision c amber 9 with the ice chamber 10. Near the bottom of the ice chamber is a slatted grate 11 on which rests a block of ice 12. Below the grate is a funnel 13 `directing the drainage from the ice away from the walls and toward the center of the water pan 14. In the bottom of the water pan and extendin through the floor of the refrigerator, is a rain pipe 15 adapted to drain the surplus water from the bottom of the ice chamber into any suitable receptacle beneath the refrigerator. This drain pipe extends above the Hoor of the water pan and is provided with a cap 16 fitting down over 1t and having openings 17 at a lower level than the top of the drain by means of which a water seal is produced, maintaining a supply of water in the pan and preventing the escape of cold air from ,the ice chamber to the exterior of the refrigerator. The water pan maintaining a constant supply of water absorbs the gases and odors from vitiated air by contact between the water in the pan and air passing in a current between the ice and provision chambers.

The partition 6 is made up of a metal sheet 18 reinforced by ya corrugated metal backing 19 extending vertically upon theI partition and formino passageways 20 between the backing and the sheet 18. These passages are closed at the top 'and open past the grate 11 by means of round apertures 21, and are connected with the provision chamber by similarapertures 22 at different elevations in the provision chamber. The apertures 21 serve as drains for condensation forming on the cooled inner surfaces of the metal sheet 18 and also to complete the circulation of air through the passageways 20 of the partition 6. The provision chamber 9 is rovided with suitable shelves 23 formed of) metal screening.

In operation, ice is introduced into the ice chamber through a suitable door in the front of the ice box while the provision chamber is accessible through a similar separate door.

As the ice melts and establishes the waterY seal about the drain 1 5, the air cooled by contact with the ice, sett-les to the bottom of the ice chamber and asses through the aperture 7 into the provision chamber where it gradually rises around the contents of the chamber. At the same time the warmer air in the top of the provision chamber passes through the aperture 8 into the ice chamber 10 re lacing the cooled air that has settled there rom. The air within the passageways 2O `of the partition 6 as it cools by contact with the metal sheet 18, descends, passing out through thefapertures 21 and 22 thus aiding in the circulation of air within the provision chamber and in the uniform cooling thereof. The aperture 8 is comparatively shallow allowing the circulation from the top of the provision chamber, of only largepassageway at low speed a'nd warm air `removal through a small passageway at a higher speed tend to reduce the air currents in the cool air reservoir. The circulation of air through the apertures 22 int-o the passageways 20 of the partition 6 and out through the apertures 22 and 2l near the bottom of the partition produces' an auxiliary circulation in the provision chamberl embodiment thereof but I desire to have it understood that the construct-ion shown is only illustrative and that the invention can be carried outby other means and ap lied to uses other than those above set' orth within the scope of the following claims Having described my invention, what l claim vas new and desire to protect by Let-V s ters Patent is v In a refrigerator, a refrigerat-ing chamber for ice and a provision chamber adjacent thereto for provisions, a closed partition Lofeaaro separating said chambers, f formed with a refrigerating chamber face and a provision chamber face, and having a circulation passageway extending across below its bottom to permit cool air from said refrigerating chamber to pass into said provision chamber at low speed, anda passageway of relatively small slze. abovel sald partition at the top of said chambers adapted to the removal of the warmest air from said provision chamber at' a relatively 'greaterspeed of movement toprevent air currents traversing said chamber and vertical division walls between the faces of said partitionormed from a single piece of material and forming passagewa s adjacent to the '/refrigerating chamber ace thereof and communicating with said provision chamber through aper- 4 tures in said provision chamber face to produce local air circulations inthe provision chamber for the uniform distribution of cool air therein.

lln testimony whereof, l have signed mycname to this speciication, in the presence of ytwo subscribing witnesses, v

WlLLlAM MANTEUFFEL.

' Witnesses: c

MARTIN H. ALBIN, j F. G. BRADBURY.- 

